My husband and I researched all the Antarctic cruise choices thoroughly. Some ships are very small without stabilizers but they allow passengers to make zodiac landings. Other ships are large but because of the limitations of the IAATO rules which state that only 100 people are allowed to go ashore at one time, they do not make any landings. We picked Seabourn Quest because it is mid-sized, offered zodiac landings in the Antarctic, plus we knew we would be more comfortable and we thought they would look after us well. The Antarctic is an unforgiving place, the Drake Passage is one of the worse bodies of water in the world, and we wanted a ship with a strengthened hull and good stabilizers. The itinerary was excellent: busy but with some days at sea to rest a bit.
We began in Valparaiso and made our way down along the Western side of South America. The Chilean Fjords are lovely, and shore excursions there interesting and fun. But everyone started to get more and more excited when the captain announced that, because there was an opening with good weather, he wanted to make a run across the Drake to the Antarctic peninsula sooner than scheduled. We would be in Ushuaia a day ahead and then head south.
At Ushuaia we took on an extra pilot with experience in ice filled waters, who had previously served with the US Coast Guard in Alaska. So now we had 2 pilots, plus there was a large expedition team of naturalists, zodiac drivers, and researchers on board to help. The Quest took about 400 passengers, so we rotated in groups to land once we arrived at the Antarctic peninsula, and it worked out very well.
We were always carefully looked after. They helped us in and out of our gear, helped with antiseptic washing down of clothing, equipment and the like, and were scrupulous in efforts to prevent contamination of the environment. We had extra landings whenever the weather permitted, and went to South Georgia a day earlier than scheduled, so had more time there where we saw more amazing wildlife. Captain Larsen was very flexible with the schedule, and seized every opportunity he could to show us more and more places. But we had to be flexible too - one day we were out in zodiacs when he blew the ship's whistle and all the zodiacs had to hurry back to the ship. We had to leave there quickly, because the wind had changed direction and sea ice was starting to close in around the ship. (At about this same time we were getting reports of a ship trapped in ice in the Roth Sea, and icebreakers had been unable to reach it.)
We had wonderful lecturers, many with years and years of experience in the Antarctic. Of course Seabourn serves great food and the liquor is all included, whatever you want. Yes, Seabourn is a luxury line and as the saying goes, you get what you pay for. But I will remember this trip as the trip of a lifetime. It was worth every penny. I can not think of one "con" about this cruise. Everything was wonderful.